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• Frame works/Packages for video editing in IOS ?

  16 juillet 2014, par 2vision2

  I’ve just started working on video editing application for IOS.

  What i am trying to do :

  Trying to create a typical Video Editing application with the following features.

  1. Frames split-up(thumbnails)
  2. Adding/merging videos
  3. Adding audio to the video.
  4. Audio/Video Fadeouts.
  5. Zoom in and Zoom out functionalities
  6. Adding subtitles/Titles
  7. Audio Filtering.

  What have i done so far :

  Put a detail pre development study and found that FFMPEG can do the job. I have taken
  the latest version of FFMPEG and built for IOS as .a files.

  However, i feel extremely hard to create a sample programs as i am beginner in ios.

  Also i’ve found that the IOS SDK frameworks like CoreVideo, CoreAnimation, CALayers may help.

  Now reading about OpenGLES.

  What’s my problem :

  1. Any help regarding finding the framework/package (from apple or third party) for the video editing application ?

  2. Is FFMPEG the only option ? If yes, can you guys give me a link or sample programs to start with FFMPEG ?

• avformat/argo_brp : allow v1.1 ASF streams to have a non-22050 sample rate in certain...

  25 septembre 2020, par Zane van Iperen

  avformat/argo_brp : allow v1.1 ASF streams to have a non-22050 sample rate in certain circumstances
  It seems that in files where the BASF block isn't first, v1.1 ASF streams are
  
  allowed to be non-22050. Either this format is really inconsistent, or
  
  FX Fighter and Croc just ignored the sample rate field, requiring the v1.1
  
  restriction in the first place.
  This bumps the version to 1.2 in these streams so they're not "corrected".
  Found in Alien Odyssey games files in :
  
  ./GRAPHICS/COMMBUNK/COMADD1,COMM2_1,2,3E,COMM3_2,3,4,5,6,FADE1,2.BRP
  
  Signed-off-by : Zane van Iperen <zane@zanevaniperen.com>
  

  • [DH] libavformat/argo_brp.c

• ffmpeg change metadata inside video file

  26 novembre 2020, par virtualsets

  Hello I have problems to change timecode insdie metadata of a video file "mov"

  


  ruta=r"E:\Brutos-sin-eliminar\inma-ruben-22-2-2020\multicam\\"
nombre=r"A019_02230134_C186.mov"
comand="ffmpeg -i " + nombre + " -ss 0 -map 0 -acodec copy -vcodec copy -timecode 01:20:10:00 -metadata:s:2:0 timecode=01:20:10:00 -metadata:s:1:0 timecode=01:20:10:00 -metadata:s:0:2 -metadata:s:0:2  timecode=01:10:10:00"+ " convert_" + nombre

os.popen(comand)


  


  I need to put muy own timecode to the file but this command not works.

  


  The console give me

  


    mov @ 00000225287fdc00] You requested a copy of the original timecode track so timecode metadata are now ignored
Output #0, mov, to 'convert_A019_02230134_C186.mov':
  Metadata:
    major_brand     : qt  
    minor_version   : 537199360
    compatible_brands: qt  
    com.blackmagic-design.camera.windowedSensor: 1
    com.apple.proapps.manufacturer: Blackmagic Design
    com.blackmagic-design.camera.uuid: 3cf1dd9e-e307-47ff-864e-5487fea3fa47
    com.blackmagic-design.camera.projectFPS: 25
    com.apple.proapps.shootingRate: 50
    com.blackmagic-design.camera.cameraType: Blackmagic Pocket Cinema Camera 4K
    com.blackmagic-design.camera.shutterAngle: 180°
    com.blackmagic-design.camera.shutterMode: Angle
    com.blackmagic-design.camera.iso: 3200
    com.blackmagic-design.camera.whiteBalanceKelvin: 3000
    com.blackmagic-design.camera.whiteBalanceTint: -44
    com.apple.proapps.customgamma: com.blackmagic-design.camera.filmlog
    com.blackmagic-design.camera.look.LUTName: Blackmagic Pocket 4K Film to Extended Video.cube
    com.blackmagic-design.camera.guides.aspectRatio: 2:1
    com.blackmagic-design.camera.guides.safeArea: 90
    com.blackmagic-design.camera.firmware: 6.6
    com.apple.proapps.clipID: A019_02230134_C186
    com.apple.proapps.reel: 19
    com.apple.proapps.scene: 1
    com.apple.proapps.shot: 99
    com.apple.proapps.isGood: 0
    com.blackmagic-design.camera.environment: interior
    com.blackmagic-design.camera.dayNight: day
    com.apple.proapps.cameraName: A
    com.blackmagic-design.camera.colorScience: Blackmagic Pocket Cinema Camera 4K, Color Science Gen 4
    com.blackmagic-design.camera.dateRecorded: 2020:02:23
    timecode        : 01:20:10:00
    encoder         : Lavf58.11.101
    Stream #0:0(eng): Video: prores (apcn / 0x6E637061), yuv422p10le(bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 122315 kb/s, 25 fps, 25 tbr, 12800 tbn, 25 tbc (default)
    Metadata:
      creation_time   : 01:10:10:00
      handler_name    : ?Apple Alias Data Handler
      encoder         : Apple ProRes 422
      timecode        : 01:10:10:00
    Stream #0:1(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, stereo, s32 (24 bit), 2304 kb/s (default)
    Metadata:
      creation_time   : 2020-02-23T00:34:02.000000Z
      handler_name    : ?Apple Alias Data Handler
      timecode        : 01:20:10:00
    Stream #0:2(eng): Data: none (tmcd / 0x64636D74), 0 kb/s (default)
    Metadata:
      creation_time   : 2020-02-23T00:34:02.000000Z
      handler_name    : ?Apple Alias Data Handler
      timecode        : 01:20:10:00
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (copy)
  Stream #0:2 -> #0:2 (copy)
Press [q] to stop, [?] for help
frame=  467 fps=0.0 q=-1.0 Lsize=  281452kB time=00:00:18.64 bitrate=123693.3kbits/s speed=71.1x    
video:278913kB audio:2531kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.002533%


  


  I dont understand why not modificate the mov file... when open the metadata it is oringinal.

  


  Reggards